• Code: 155
• Display: Service call 155: Error
• Description: The fuser unit fuse has blown out.
• Remedy: Is the fuser unit installed normally? Does this error recur?
  After cleaning the connecting connector of the fuser unit, re-install the fuser unit. Turn on the power again. After checking for the sure cable connection, replace the PU board.

• Code: 160 ... 163
• Display: Service call 160: Error~ 163: Error
• Description: Toner sensor detection error. (160=Y, 161=M, 162=C, 163=K) This error does not occur with the default settings.
• Remedy: Is the toner cartridge installed? Is the lock lever of the toner set? Does this error recur?
  Install the toner cartridge. Rotate the lock lever of toner to the lock position. Turn on the power again. Replace the toner sensor assembly.

• Code: 167
• Display: Service call 167: Error
• Description: Thermistor Slope Error
• Remedy: Is the error message displayed? Does this error recur?
  Turn on the power again. After leaving a printer for 30 minutes, turn on the power again.

• Code: 168
• Display: Service call 168: Error Note)
• Description: Compensation Thermistor Error
• Remedy: Is the error message displayed? Does this error recur?
  Turn on the power again. After leaving a printer for 30 minutes, turn on the power agai

• Code: 170, 171
• Display: Service call 170: Error 171: Error Note)
• Description: Short-circuit or open-circuit of fuser thermistor is detected.
• Remedy: Does this error recur? Yes Turn on the power again. Replace the fuser unit.

• Code: 172, 173
• Display: Service call 172: error 173: error
• Description: The fuser thermistor has detected an abnormal temperature (high temperature or low temperature.)
• Remedy: Does this error recur? Turn on the power again. Replace the fuser unit. Replace the low voltage power supply unit.

• Code: 174
• Display: Service call 174: error
• Description: The backup roller thermistor is detected of its short-circuit. (At high temperature)
• Remedy: Does this error recur? Yes Turn on the power again. Replace the fuser unit.

• Code: 175
• Display: Service call 175: error Note)
• Description: The backup roller thermistor is detected of its opencircuit. (At low temperature)
• Remedy: Does this error recur? Yes Turn on the power again. Replace the fuser unit.